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Hi,
I have no idea about certificates but a problem:
I have three things:
- a file *.pem ---> !-----BEGIN PUBLIC KEY-----
-----END PUBLIC KEY-----<br />
- a signed base64 string<br />
- an unsigned base64 string<br />
<br />
the signed base64 string must be verify and compare with the unsigned string.<br />
<br />
but how???
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This is my very first .NET posting to the Code Project! and it definitely won't be my last.
I would like to build a handheld app that allows communication between other handhelds, presumably via bluetooth or I some other similar wireless protocol. the app will communicate and collect data via that process and then upload that data to a server via a web page.
I am a c# programmer but have absolutely no experience with handhelds. I have VS2005 and SQL2005 loaded on my machine and have already started working with both.
I'm working on a project that collects profile info via a normal web site and then will download that info to a handheld for communication with other handhelds.
Any idea where to start would be very appreciated. Thanks!
Alfie Swartzbaugh, MCAD
Heidelberg, Germany
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I'm working on a diagramming application for PocketPC/Smartphone devices and I'd like to see some feedback from other developers on what would make such a program a "must have". If interested in checking it out and talking about it, a demo version can be downloaded from here:
http://www.matterandmotion.com/Download[^]
Thanks!
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hi i want my application(vb.net mobile application) to read the RTF file i tried myself but it does not work i mean controll is not available in toolbox,is there is any other controll/way to show the RTF files.
Tasleem Arif
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Unfortunately, Microsoft didn't think it was necessary to include RichTextBox in the .Net CF (not even V2.0). You're going to have to use a custom control (either of your own making, or if someone else has already done the work for you). Since RTF files are just text files with some markup, it's just a matter of reading in the text file and interpreting the RTF codes.
Another problem lies with actually displaying the RichText-formatted text. Like I said, since the NCF doesn't have a RichTextBox, you might try using a Graphics object to draw the text to a control (of course, you'd have to draw it one character at a time, but printing RTF to a printer is pretty much the same way). The BIGGEST problem is that you would only be able to DISPLAY the text, not modify it as well.
I ran into the same frustration, with a PocketPC app I started a while ago. The most we all can do is either use PocketWord, or cuss at Microsoft for not including the RichTextBox control.
-Daniel
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thanks for ur reply.can u tell me in v 2.0 the "Web browser controll" used to display web pages is also not present.
Tasleem Arif
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I'm sorry, but I don't have any experience with the web browser control.
-Daniel
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I am sharing your frustration. The web browser is included in CF 2.0. For my purposes, however, I don't want to use webBrowser because webBrowser then calls PocketWord and thats not very pretty. I am hoping i can figure out some way to display word type files using the OpenNetCF Inkx control, but I haven't gotten very far with it.
Jim
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I have placed to following code in the "Load" method of a form with a dataGrid1 object added. When I run the application and after a small delay the data grid shows a small box with an arrow in the upper-left corner but it does not display my data. Does anyone know why this is happening?
private void Authors_Load(object sender, EventArgs e)
{
DataSet dsAuthors = new DataSet("authors");
string filePath = "/Storage Card/authors.xml";
dsAuthors.ReadXml(filePath);
dataGrid1.DataSource = dsAuthors;
}
Terrence Rideau
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How to realize OpenFileDialog on Smartphone Windows Mobile 5.0 ?
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Hi all, I have a application run in O2 Xda IIi Pocket PC (speed 520MHz) where I will update the image of the picture box every minit.
My code is like below:
void DisplayMap()
{
Bitmap MyImage1;
if(picCar.Image!=Null)
picCar.Image.Dispose();
MyImage1 = new Bitmap("C:\car.jpg");
picCar.Image = MyImage1;
}
My problem is sometimes the application will hang! I have debug this and find out that when reach 'new Bitmap', it will just hang, or sometimes pop out System.IO.FileNotFoundException:FileNotFoundException
where actually the file is exist!
Can anybody help me on how to dispose a picturebox image properly?is it a bug of .NET picturebox?
I had also run the same application in O2 Xda II (Speed 400Mhz) and O2 Xda II Mini Mobile Handphone PDA limited edition (Speed 416 MHz), and it is no problem at all! Will it be the speed and RAM problem?or graphic processing?
Thanks.
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Use this:
void DisplayMap()
{
Bitmap MyImage1;
if(picCar.Image!=Null)
{
MyImage1=picCar.Image;
picCar.Image=Null;
MyImage1.Dispose();
MyImage1=Null;
}
MyImage1 = new Bitmap("C:\car.jpg");
picCar.Image = MyImage1;
}
THIS MUST WORK! 
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Hey guys if anyone knows how or knows where some good documentation on setting up an infrared printer on a pocket pc device using windows ce...pleas let me know. This thing is a pain lol and im running out of time so any help would be much apreciated.
Thanks for the help 
Pablo
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Hi I am new here. I want to write some code for Pocket PC using Visual Studio.Net 2003 and visual c++/MFC.
I already have some code in MFC / visual studio.net 2003.
I want to rewrite them for Pocket PC.
My question is does Pocket PC support MFC in visual studio.net 2003.
If yes can you suggest some tutorial/ notes/ book on that subject.
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Hi,
maybe this is the wrong forum, but my app runs on Windows Mobile ... Anyway: I have a form with lots of different Label controls, generated by designer. What would be the best approach to change the font color for all these labels (so that users can switch between a day and night view). I'd rather not set every label control manually ... (this is C#/.NET CF 2.0)
Thanks
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Hi All
I wish to connect my mobile (Samsung - C100) in to our code.
What i need to connect (without using EasyGPRS), is there any .ocx available for connect...
waiting for your reply...
Thank you.
Sakthivel P.
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I have a RAS Dialup client implemented on the WinCE device. It calls the RAS server on remote machine to establish Modem - to Modem communication.
I have a following issue.
1. The connection between the Client and Server is establish but the server fails to authenticate the client crudentials ( User entered wrong password or user name ).
2. At this point I ask User to enter new ID and Password, drop the current connection and re-establish a new one by dailing again with the new crudentials.
The requirement I have is to not drop the connection and re-dail a new, but to keep the connection and only re-authenticate the client with the newly entered values ( somehow ).
I'm not sure how to do that since there is no appropriate API calls for the RAS interface.
Anybody has any ideas how this can be done?
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Hello,
I am developing a program for Windows Mobile 5.0 Phone Edition (using C#). My problem is that I have not idea how to program a video call, I don't know what APIs or TAPIs should I use. I need to change the video information to send to the other 3G mobile phone but I don't know how do it. My PDA is a "Qtek 9000". Anybody have any idea about this topic?
Thank you very much!
Alexis
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Hello all,
I am using .NET Compact Framwork 2.0, in my Smart Device application.
I have one Label Conrol. In my Lable contol i want to put vetical & Horizontal scroll bar in label. But Lable control is not having WordWrap Option.
My problem is how to put v.Scroll bars in Label Control
any body any sounds
plz help me will be appriciated..
regards
Ramana
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I'm doing some small PocketPC development, and I need to be able to have a basic database on the unit. I'm using EVC4.0 because the SDK for the unit does not support .NET yet... yuck.
What do you recommend? I'm using Win32 type code, hoping you could provide some examples.
Thanks.
Mike
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Hello!
I'm about to receive a nice gadget, the i-mate K-JAM PDA-phone with Windows Mobile 5.0. I've been looking forward to do some coding on this platform, but as it turns out I will need VS 2005 to develop with .NET 2.0. Does anyone know of alternative development platforms or any (actual) open-source initiative to enable development on Windows Mobile 5.0? I currently does not have a license for VS 
Thanks in advance for any response!
Best regards,
Kenneth
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Hi.
As far as I know, you could use Pocket C. It isn't the easiest way, but it works. (I've tested it). It starts at $29. Have a look at www.orbworks.com
Hope this helps.
Benedikt
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I need a development environment to build .NET 2.0 applications and PocketC can't do this.
Thanks anyway, Benedikt!
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Back when my device only had version 1.1 of the .Net Compact Framework, I was using PocketC# and a PPC commandline to develop apps on my PPC for my PPC. I had to make my own C# source file editor (easy enough) because Microsoft thought it would be cool to hide file extensions (so I couldn't edit .cs files with Pocket Word).
Since installing .NCF version 2.0, I've done a little, but I don't recommend it. I'm still waiting for someone to port version 2.0 of csc.exe to PocketPC (PocketC# includes a port of version 1.1).
-Daniel
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